Regular exercise positively influences cognitive decline by promoting brain health through various mechanisms. Physical activity enhances blood flow to the brain, which can improve cognitive functions like memory and focus. It also stimulates the release of neurotransmitters like dopamine and serotonin, which regulate mood and can stave off depressive symptoms. Moreover, exercise encourages the growth of new brain cells and connections, promoting neuroplasticity. Consistent physical activity can delay the onset of neurodegenerative diseases like Alzheimer’s and support overall mental agility as one ages.